公开(公告)号：US10733141B2

公开(公告)日：2020-08-04

申请号：US16103711

申请日：2018-08-14

Applicant: Analog Devices, Inc.

Inventor： Manish J. Manglani ,  Shipra Bhal ,  Christopher Mayer

IPC: G06F9/30 ,  G06F15/82 ,  G06F13/24

Abstract: This disclosure relates to a distributed processing system for configuring multiple processing channels. The distributed processing system includes a main processor, such as an ARM processor, communicatively coupled to a plurality of co-processors, such as stream processors. The co-processors can execute instructions in parallel with each other and interrupt the ARM processor. Longer latency instructions can be executed by the main processor and lower latency instructions can be executed by the co-processors. There are several ways that a stream can be triggered in the distributed processing system. In an embodiment, the distributed processing system is a stream processor system that includes an ARM processor and stream processors configured to access different register sets. The stream processors can include a main stream processor and stream processors in respective transmit and receive channels. The stream processor system can be implemented in a radio system to configure the radio for operation.

公开(公告)号：US20200213163A1

公开(公告)日：2020-07-02

申请号：US16726579

申请日：2019-12-24

Applicant: Analog Devices, Inc.

Inventor： Manish J. Manglani ,  Christopher M. MAYER

IPC: H04L25/02

Abstract: Devices exchange control signals with each other to ensure proper operation of an overall system. For instance, in a communication system, a baseband processor and a transceiver communicate with each other to exchange information for controlling the respective signal processing parts of the baseband processor and the transceiver. While Serial Peripheral Interfaces (SPIs) can be used, SPI can be extremely slow, and does not provide a protocol for allowing a complex set of control signals to be exchanged between the baseband processor and transceiver. The present disclosure describes a fast control interface which can support various modes of operation in allowing two devices to communicate with each other quickly and effectively.

公开(公告)号：US09673847B1

公开(公告)日：2017-06-06

申请号：US14952706

申请日：2015-11-25

Applicant: ANALOG DEVICES, INC.

Inventor： Christopher Mayer ,  David J. McLaurin ,  Martin S. McCormick ,  Chris Angell ,  Manish J. Manglani

IPC: H04B1/04 ,  H04L1/00 ,  H04B1/40 ,  H04B17/13

CPC classification number: H04B1/0475 ,  H04B1/40 ,  H04B17/13 ,  H04B2001/0425 ,  H04L1/0042

Abstract: Apparatus and methods for transceiver calibration are provided. In certain configurations, a transceiver includes a transmit channel and an observation channel. The transmit channel includes a transmit mixer that up-converts a transmit signal by a first or transmit local oscillator frequency. The observation channel includes an observation mixer that down-converts an observed signal from the transmit channel by a second or observation local oscillator frequency that is offset from the first local oscillator frequency. By observing the transmit channel using a local oscillator frequency that is offset relative to the transmit channel's local oscillator frequency, the observation channel can observe transmit channel impairments substantially independently from observation channel impairments.

公开(公告)号：US20170149457A1

公开(公告)日：2017-05-25

申请号：US14952706

申请日：2015-11-25

Applicant: ANALOG DEVICES, INC.

Inventor： Christopher Mayer ,  David J. McLaurin ,  Martin S. McCormick ,  Chris Angell ,  Manish J. Manglani

IPC: H04B1/04 ,  H04B1/40 ,  H04B17/13 ,  H04L1/00

CPC classification number: H04B1/0475 ,  H04B1/40 ,  H04B17/13 ,  H04B2001/0425 ,  H04L1/0042

Abstract: Apparatus and methods for transceiver calibration are provided. In certain configurations, a transceiver includes a transmit channel and an observation channel. The transmit channel includes a transmit mixer that up-converts a transmit signal by a first or transmit local oscillator frequency. The observation channel includes an observation mixer that down-converts an observed signal from the transmit channel by a second or observation local oscillator frequency that is offset from the first local oscillator frequency. By observing the transmit channel using a local oscillator frequency that is offset relative to the transmit channel's local oscillator frequency, the observation channel can observe transmit channel impairments substantially independently from observation channel impairments.